Search a number
-
+
13358161 = 97137713
BaseRepresentation
bin110010111101…
…010001010001
3221010122221201
4302331101101
511404430121
61154151201
7221354035
oct62752121
927118851
1013358161
1175a4203
124582501
1329c924b
141aba1c5
15128ce91
hexcbd451

13358161 has 4 divisors (see below), whose sum is σ = 13495972. Its totient is φ = 13220352.

The previous prime is 13358129. The next prime is 13358227. The reversal of 13358161 is 16185331.

13358161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3779136 + 9579025 = 1944^2 + 3095^2 .

It is a cyclic number.

It is not a de Polignac number, because 13358161 - 25 = 13358129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13352161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68760 + ... + 68953.

It is an arithmetic number, because the mean of its divisors is an integer number (3373993).

Almost surely, 213358161 is an apocalyptic number.

It is an amenable number.

13358161 is a deficient number, since it is larger than the sum of its proper divisors (137811).

13358161 is an equidigital number, since it uses as much as digits as its factorization.

13358161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137810.

The product of its digits is 2160, while the sum is 28.

The square root of 13358161 is about 3654.8818038344. The cubic root of 13358161 is about 237.2733113078.

The spelling of 13358161 in words is "thirteen million, three hundred fifty-eight thousand, one hundred sixty-one".

Divisors: 1 97 137713 13358161